Add settings page for managing forecasting API key and URL via UI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/node_modules/es-toolkit/dist/compat/string/lowerFirst.mjs

@@ -0,0 +1,19 @@
+import { lowerFirst as lowerFirst$1 } from "../../string/lowerFirst.mjs";
+import { toString } from "../util/toString.mjs";
+//#region src/compat/string/lowerFirst.ts
+/**
+* Converts the first character of string to lower case.
+*
+* @param str - The string that is to be changed
+* @returns The converted string.
+*
+* @example
+* const convertedStr1 = lowerCase('fred') // returns 'fred'
+* const convertedStr2 = lowerCase('Fred') // returns 'fred'
+* const convertedStr3 = lowerCase('FRED') // returns 'fRED'
+*/
+function lowerFirst(str) {
+	return lowerFirst$1(toString(str));
+}
+//#endregion
+export { lowerFirst };